<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			a:link {
				font-size: 18px;
				color: gray;
				font-weight: 700;
			}
			a:visited {
				font-size: 18px;
				color: orange;
				font-weight: 700;
			}
			a:hover {
				color: red;
				font-weight: 700;
			}
			a:active {
				font-size: 16px;
				color: green;
				font-weight: 700;
			}
		</style>
	</head>
	<body>
		伪类选择器其中的 链接伪类选择器 主要针对于a
		
		<div><a href="#">秒杀</a></div>
	</body>
</html>
